My son encountered a filing on line for free problem. In his case it was the old story of Charlie Brown with Lucy and the foot ball. Someone always pays for free filing of a uncomplicated filing on TurboTax. When the data you file exceeds a certain complexity, you will be billed for the service. Remember "Nothin' for nothin'". The real question is: Why would someone pay to supply some of the public a "free" service?
